Giedo van der Garde says the gap to the midfield is too big for Caterham to close and that the team won't bring further updates to its car.

Caterham started the season with an evolution of its 2012 car before introducing a major upgrade at the Spanish Grand Prix which has helped it leapfrog Marussia in terms of pace. However, the team remains at least a second off the pace of the midfield runners and van der Garde told ESPN that he was limiting his expectations for the rest of the season as the team was understandably focused on 2014.

"We're definitely not going to bring any updates any more because the focus is just for next year," van der Garde said. "I think the gap to the next cars is just a bit too big. At some tracks we will probably be closer but it's going to be very tough to close that in this year and next year I think the opportunity is much bigger to gain time.

"So I think it will still be a fight with my team-mate, maybe at some places Marussia can be closer and maybe we can be closer to the Williams or whoever it is in front. We'll see; I think if we keep on progressing like this in the next few races I think we're going to do a good job towards the end of the year."